The element that is most likely to be featured in a work of realistic fiction is "well-defined character suggested by actual experience." This would provide the most realistic character.
Answer: The quality of being just; righteousness, equitableness, or moral rightness: to uphold the justice of a cause. rightfulness or lawfulness, as of a claim or title; justness of ground or reason: to complain with justice. the moral principle determining just conduct.
This is known as a "free verse".